Hey guys,
Recently any trailer that I hook up to my 2014 Silverado the brake and turn signals will work but not the running lights. Also if I turn on the running lights or markers lights, whatever you wanna call them, none of the lights work. I tried testing the wiring harness in the bumper and it shows that no power is coming out of the harness which is even more confusing considering the brake and turn signals were working. Anyone ever have this issue or know where to point me to look for issues? Maybe it is just the part that is in the bumper that has gone bad? I tried cleaning it out and put electrical grease in the connection but it still did nothing for me. I appreciate any responses!